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Mypy

Checked
bobmatnyc·vlatest·backend·MIT

Mypy analyzes Python code for type errors, catching potential bugs early and improving code reliability during development.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add bobmatnyc/claude-mpm-skills --skill mypy -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

bobmatnyc

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned bobmatnyc/claude-mpm-skills at 718070a7d6.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
718070a7d6
Manifest
toolchains/python/tooling/mypy/SKILL.md
Scanned
2 files, 1,224 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill provides static type checking for Python code. It analyzes your codebase to find potential type errors without actually running the program, improving code quality and reducing runtime bugs. The tool helps ensure that variables have the expected types, preventing unexpected behavior and making code easier to maintain.

When to use it

  • Before submitting a pull request: Ensure new or modified Python code adheres to defined type annotations and doesn't introduce type errors.
  • During refactoring: Verify that changes to function signatures or data structures don’t break existing type contracts.
  • As part of continuous integration: Automate type checking as a gatekeeper in your development pipeline.
  • When working on large Python projects: Improve code maintainability and reduce debugging time by proactively identifying type-related issues.

Key capabilities

  • Static type analysis
  • Type error detection
  • Python type hinting support
  • Code quality improvement

Example prompts

  • "Run mypy on this Python file: [file path]"
  • "Check the types in this code snippet: [code snippet]"
  • "Analyze this project for potential type errors."

Tips & gotchas

  • Requires Python and mypy to be installed. Ensure your environment is properly configured before using the skill.